A semicolon (;) works as a comma in a sentence, to have a slight pause in the sentence structure, and it also works as a period, separating the statement into two sentences.
No, because the original owner can sue for copyright. But if the owner did not copyright their work, then it is legal without getting sued. So yes and no
The verbal phrase in the sentence above is "getting plenty of sleep". It is composed of words introduced by a verb "getting" which functions as a noun. It falls under gerund type of verbal phrase. Other types include infinitives and participial.